/*
 * Copyright (c) 2022 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import IllegalArgumentException from '../../../IllegalArgumentException.js';
import ArithmeticException from '../../../ArithmeticException.js';
export default class ModulusBase {
    add(a, b) {
        return (a + b) % this.modulus;
    }
    subtract(a, b) {
        return (this.modulus + a - b) % this.modulus;
    }
    exp(a) {
        return this.expTable[a];
    }
    log(a) {
        if (a === 0) {
            throw new IllegalArgumentException();
        }
        return this.logTable[a];
    }
    inverse(a) {
        if (a === 0) {
            throw new ArithmeticException();
        }
        return this.expTable[this.modulus - this.logTable[a] - 1];
    }
    multiply(a, b) {
        if (a === 0 || b === 0) {
            return 0;
        }
        return this.expTable[(this.logTable[a] + this.logTable[b]) % (this.modulus - 1)];
    }
    getSize() {
        return this.modulus;
    }
    equals(o) {
        return o === this;
    }
}
